/*
 * Copyright 2021-2022 the original author(https://github.com/wj596)
 * 
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * </p>
 */
package org.jsets.fastboot.security.aop;

import java.lang.annotation.Annotation;
import org.aspectj.lang.JoinPoint;
import org.jsets.fastboot.security.SecurityUtils;
import org.jsets.fastboot.security.annotation.HasPermission;
import lombok.extern.slf4j.Slf4j;

/**
 * HasPermission注解方法拦截器
 *
 * @author wangjie (https://github.com/wj596)
 * @date 2021.07.10 23:56
 */
@Slf4j
public class HasPermissionMethodInterceptor extends AnnotationMethodInterceptor {

	public HasPermissionMethodInterceptor(Class<? extends Annotation> annotationClass) {
		super(annotationClass);
	}

	@Override
	void doAuthenticate(JoinPoint joinPoint) throws Throwable {
		
		Annotation ann = this.getAnnotation(joinPoint);
		if (!(ann instanceof HasPermission)) {
			throw new IllegalStateException("annotation type mismatching");
		}
		
		this.assertAuthenticated(joinPoint);
		
		HasPermission hp = (HasPermission)ann;
		String permission = hp.value();
		boolean allowed = SecurityUtils.getAuthorizer().isPermitted(permission);
		if(log.isInfoEnabled()) {
			log.info("访问方法["+ this.getInvokeMethod(joinPoint) +"]需要权限["+ permission +"]，鉴权结果["+ allowed +"]");
		}
		this.assertAllowed(allowed);
	}

}
